Descent: Underground trailer

[Nova]

If you like tactical games then Xbox has plenty of them in it's lineup. The thing is that these days FPS tacticals are too many and hard to find the right one for your taste. I found one for myself with the descent. And it seems like a good fit. The gameplay makes it addictive playing experience. And the graphics and the overall plot is good to stay playing. You may want to check out the walkthrough here.